Quality degradation with 2.0?

I’ve been working on a new design for a few weeks, and decided to upgrade to BambuStudio 2.

I noticed a huge drop in quality for the first layer of a technically special slice. By that I mean… what I’m doing is a bit unique but should still be within the printers capabilities, but may be filament-dependent in terms of how well it comes out.

I’m printing a thin feature - 0.1mm thick part - and ironing that layer - with a 0.4mm nozzle. ALL of my test prints with v1 came out identically. I updated my software to 2, and this first layer started to print horribly - the individual extrusions now have a gap between them. I installed 1 back on my computer (alongside 2) and printed - it printed as before.

I reviewed the default settings - but nothing changed between the two besides the version of BambuStudio.

Obviously, it is a newer version and filament settings have changed - but comparing those besides the new ramming parameter, nothing else seems to be different.

I can’t share my 3mf, though I suppose I could design a test file. To sum it up:

Problem : Bambu Studio print quality degradation
Studio Version : 2.0.1.50
Platform : MacOS
Steps to reproduce :

  1. Create a new file, add a primitive cube, scale to .1mm high
  2. initial layer height to 0.1mm
  3. 0.4mm nozzle
  4. Smooth PEI Plate/HighTemp Plate, no glue
  5. PLA Clear/natural
  6. Generic PLA profile
  7. Arachne wall generator
  8. Turn ironing on, All Solid Layers
  9. Use the 0.2mm standard profile

A1 Combo (low hours, ~95)
Plate: Bambu Smooth PEI Plate/HighTemp Plate (no glue)
Material: PLA natural + PLA white
Part: 0.1mm thick
Overridden settings: 0.1mm first layer height, Ironing turned on for all solid surfaces

Either downgrade to an older version or do a printer reset and redo calibration. A few users experienced the same issue.

Try to adjust the ironing flow, i think they dropped from 20 to a default value of 10 :thinking:

Ironing settings were unchanged between versions:

Printer reset? I’m wondering what you mean - I don’t see how resetting the printer/calibration would fix this (but I’m willing to try).

And - yes - downgrading fixes the issue… but I can’t reliably expect users to downgrade to v1 if they want to print this with the same quality in v2, I may have to rethink this design… but I was pretty excited with my results.

In the physical printer settings their should be a factory reset. I think that’s what he means.
I did a factory reset of mine, and after the fresh update a lot of problems worked out. There is still some stuff going on though. Cant quite put my finger on it.

Same Problem here,

i have 2 printers p1s. One of them have big problems printing. First layer looks like ■■■■ in the corners. In the middle looks good, but when i´m printing my design, the quality is horrible, like printing with a 3d pen… o.O

after many times auto calibration i testet manual calibration. better results in testprinting but horrible print my normal files…

Where i can find a download for 1.9xxx version?

Best regards

Scroll down to the release of your choice, open “Assets”.

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Thank you very much.

Today I solved my problems with p1s.

After downgrading the print quality was better but not good.

I’ve manually calibrated the bed many times. The last thing that helped me, was heating the bed to 60 degree and calibrating the bed in hot condition. Enter that I printed test layers and calibrated manually without g code.

Now I have perfect first layer and very good printing results again.

The new bambulab slicer software destroyed the hole calibration of the printer. :pensive:

make sure your deleting all the old data from your preferences folder, depending on what OS you’re using. You dont have to delete, just name it *.old in case you want to revert.

After I did that, 2.0* and the hotfix update has made everything fine for me.

I was really into using 1.9, but I decided to update to the new hotfix and its been good.

Thank you for advise. Yesterday I’ve upgraded to the latest version and calibrated again manually. Still perfect prints with the new version.

Hopefully it stays.

Have a nice start in the new week.

Best regards

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